unit3--under-the-sea.ppt

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1、Warming up Have you seen plants and animals that live under the sea? Where did you see them?at an aquariumon a snorkelling tripOn a snorkeling tripAt an aquariumOn a boat tourIn booksIn filmsOn TV nature programmesOn the Internetturtle海龟海龟 seal 海豹海豹sea horse海马海马clown fish小丑鱼小丑鱼coral 珊瑚珊瑚 jellyfish 水

2、母水母clam蛤蜊蛤蜊 crab 螃蟹螃蟹 lobster 龙虾龙虾dolphin海豚海豚turtle 海龟 jellyfish 水母seal 海豹 clam 蛤蜊sea star 海星 crab 螃蟹sea horse 海马 lobster 龙虾clown fish 小丑鱼 dolphin 海豚coral 珊瑚 shark 鲨鱼whale鲸baleen whale须鲸须鲸blow-hole鼻孔鼻孔killer whale虎鲸虎鲸killer whalesbiggest carnivore(食肉动物食肉动物) of the sea, killing all kinds of animals i

3、n the sea, even the huge baleen whale, working in a team.baleenbaleenkillerkillerblow-holewhalers_whale _ _whales catch/killhelpThe whaler hunting at the beginning of 20th centuryPeople who hunt whalesPeople who hunt whalesKiller whales help whalers catch (baleen) whaleKiller whales help whalers cat

4、ch (baleen) whale 捕鲸捕鲸(whale hunting)，将系有绳索的铦或，将系有绳索的铦或叉、镖等，采用射击或投掷方式刺入鲸体进叉、镖等，采用射击或投掷方式刺入鲸体进行猎捕。猎捕对象有须鲸和齿鲸两类，以蓝行猎捕。猎捕对象有须鲸和齿鲸两类，以蓝鲸、长须鲸、露脊鲸、抹香鲸、座头鲸、北鲸、长须鲸、露脊鲸、抹香鲸、座头鲸、北极鲸、灰鲸、鳁鲸、小鳁鲸等为主。由于鲸极鲸、灰鲸、鳁鲸、小鳁鲸等为主。由于鲸油是贵重的工业原料，历史上欧洲和美洲一油是贵重的工业原料，历史上欧洲和美洲一些国家的捕鲸活动长盛不衰。自些国家的捕鲸活动长盛不衰。自20世纪中叶世纪中叶起，由于过度猎捕导致资源衰退以及国

5、际上起，由于过度猎捕导致资源衰退以及国际上对捕鲸的限制，捕鲸业已趋衰落。对捕鲸的限制，捕鲸业已趋衰落。 Background传统捕鲸方法传统捕鲸方法:6名捕鲸者离开大船，乘小艇追名捕鲸者离开大船，乘小艇追逐鲸鱼，小艇通常长逐鲸鱼，小艇通常长8.5公尺，装备有具倒钩公尺，装备有具倒钩的捕鲸铦和长索。鲸一旦被铦刺中，便带着绳的捕鲸铦和长索。鲸一旦被铦刺中，便带着绳索逃遁，直到筋疲力尽浮出水面，人们在那儿索逃遁，直到筋疲力尽浮出水面，人们在那儿用捕鲸枪用捕鲸枪(一种更长的捕鲸铦一种更长的捕鲸铦)将它杀死，用绳将它杀死，用绳索拖到大船边，用有刃的长枪割取油脂，并把索拖到大船边，用有刃的长枪割取油脂，并

6、把尸体抛弃。尸体抛弃。现代捕鲸业肇现代捕鲸业肇: 挪威人福伊恩发明了一种挪威人福伊恩发明了一种捕鲸炮，用来发射内充炸药的标枪。后来又使捕鲸炮，用来发射内充炸药的标枪。后来又使用了动力船，与捕鲸炮相得益彰，这些方法使用了动力船，与捕鲸炮相得益彰，这些方法使用至今几乎没有什么变化。用至今几乎没有什么变化。 What do you think is happening in the picture ?Killer whales are attacking a whale with whalers waiting by in their boat, harpoon at the ready.Pre-r

7、eadingWriterCareer Writing styleTimePlaceMain characterMain ideaBackground Information 1. _was 16 years of age when he went to work at the whaling station. 2._ordered Clancy to go to the boat as there was a whale out there in the bay. 3. _was swimming by the boat showing the whalers the way. 4._told

8、 Clancy that they would return the next day to bring in the body of the whale. 5._was carried by the waves further and further away from the whalers. 6. _knew that Old Tom would protect James. 1.What is the main idea of the first anecdote?A. About a hunting experience of old Tom. B. About how the ki

9、ller whales helped the whalers to hunt a whale.C. About how the whalers killed the whales.D. About how the killer whales killed the whales. 2. Whats the main idea of the second anecdote?A. How Old Tom protected and saved people.B. James was washed off the boat.C. It was hard to handle the boat in ro

10、ugh sea.D. A shark killed James. ( ) George started beating the water with his oar ( ) Clancy jumped into the boat with the whalers. ( ) Clancy arrived at the whaling station ( ) The killers started racing between our boat and the whale ( ) Clancy heard a huge noise coming from the bay ( ) Clancy wa

11、s sorting out his accommodation ( ) Clancy ran down to the shore ( ) The man in the bow of the boat aimed the harpoon at the whale Put the events in the reading passage into this timeline.1. Clancy arrived at the whaling station.4. The men went to the boat and headed out for a whale hunt.2. He heard

12、 a loud noise coming from the bay.3. He saw a huge animal in the water, which was Old Tom, the killer whale.7. The killers ate the lips and tongue of the baleen whale.5. The killer whale guided the team to the hunt.6.Clancy and his men killed the baleen whale with the help of the killers.8. The men

13、returned for the baleen whale the next day.Careful readingRead the passage carefully and answer the questions on P21 in pairs.1. What evidence was there that Old Tom was helping out the whalers? Work as a team2. What other animals did the author compare the killer whales with? why do you think the k

14、iller whales behave like this? 3. Why did George think that thekiller whales worked as a team?4. Why did the whalers allow the killer whales to drag the whale away?5. How did Old Tom help James? Why do you think he did this?afterbeforegrabbed jumped intoheaded outracedyelled outran ahead of throw it

15、self out of and crash down again swim by the boat/ lead to the hunt _killers are _ themselves on the top of the whales blow-hole to stop it _; and some others are stopping it _ out to sea. The killers started _ between our boat and the whale just like a pack of _ dogs. Within a moment or two, its bo

16、dy was _ down into the depths of the sea.throwingbreathingfleeingA pack ofhuntracingexciteddraggedhuntWhich was Not the danger facing James?being washed off the boat.being carried away by rough waves.a shark out there.being attacked by another killer whale.Comprehending1. What happened to James afte

17、r he was washed off the boat?A. He got hurt by a shark.B. He was abandoned by the other whalers and felt terrified.C. He dropped his hope and was nearly dying.D. He was held up in the water by Old Tom and rescued.2. According to the text, which of the following is NOT right?A. The killers like Old T

18、om are fierce yet always ready to help the whalers.B. The writer didnt believe the killers could help the whalers catch whales before working at the whaling station.C. The whalers left the body of the whale eaten up by the killers.D. It was hard to handle the boat in the rough sea.3. Old Tom throws

19、itself out of the water and then crashes down in order to _. A. give the whalers the information about a whale B. tell the whalers it is hungry C. help the whalers catch the whale D. inform the whalers to run away4. Why did George beat the water with his oar ?_ A. To frighten the whales away B. To c

20、all back Old Tom to lead the way C. To attract the attention of huge whales D. To send signals to other whales.5. The killers threw themselves on top of the huge whales blow-hole in order to_. A. make it sink B. play with it C. stop it breathing D. stop it diving6. Why did the men start turning the

21、boat around to go home after the whale died? A. Because they didnt need a dead whale B. Because they couldnt find the whales bodyC. Because they knew that the dead whale wouldnt float up to the surface for around 24 hours.D. They had to do this because it was too late.7. What does the word “it” in t

22、he sentence “He let it go and the harpoon hit the spot” refer to?A. The whale.B. The boat.C. The harpoon. D. The killer.8. Why did the whalers go home without bringing in the body of the whale?A. They just did the hunting for fun.B. They left it eaten up by the killers.C. It was dragged to the depth

23、s of the sea.D. They just waited for it to float up.9. According to the text, the killer whales can protect men from being attacked by_. A. whales B. tigers C. enemies D. sharks10.We can infer from the text that_. A. The killer whales may be trained by the whalers.B. The killer whales want to help m

24、an catch the whales themselvesC. The killer whales need no training for helping the whalersD. The killer whales want to eat the whales after killing themGet the main ideas of the two anecdotes. describes a hunting experience about how the killer whales helped the whalers to hunt a whale. tells about

25、 how a killer whale protected and saved James, a whaler. The first anecdote The second onecruelfin 鱼鳍鱼鳍What is his suggestion about protecting sea species?endangered buying killingNever buy endangered species products . Remember, when the buying stops, the killing can too.Discussion: What should we do to protect the endangered sea species? Sea species are our friends. They can keep the balance of nature and make our world colorful. To protect sea species is to protect ourselves.Think about slogans(标语，口号）标语，口号） to protect sea species.